The valuable polymer polyurethane is made by a condensa- tion reaction of alcohols (ROH) with compounds that con- tain an isocyanate group (RNCO). Two reactions that can generate a urethane monomer are shown here: (i)

(ii)

(c) If you wanted to promote the formation of the isocyanate intermediate in each reaction, what could you do, using Le Châtelier's principle?

Video transcript

Hello everyone today we are being given the following problem. Amines can be prepared from carbon compounds via reductive emanation. The intermediate forms in the reaction is called I mean, the following reaction illustrates a synthesis of an amine via reductive animation emanation using sodium cyanide borough hydride. In order to increase in order to increase the formation of the intermediate. And that intermediate is called. I mean so to increase this, I mean which of the following changes can you do based on the Shortly years principle? So the chandeliers principle essentially just says that when there's a disturbance in the reaction the reaction is going to shift in the direction to relieve that distress. And so the answer in this case is going to be two D remove water when you take water out of this equation, this reaction will proceed to the right in order to replenish that lost water. And so when we remove that water or aside from the products, the reactions are going to come together to help. And so that's why. The answer is D overall, I hope this helped and until next time